Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fc6854fde2b042d…

MALICIOUS

PDF

43.4 KB Created: 2020-08-20 18:56:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a5a9e718039612e369f2d70297a18f4a SHA-1: 6e959db4b0c179ebb8769057d9f05d8aff4134f9 SHA-256: 2fc6854fde2b042d88d05e9039b28c213942268a9c738a76622bc87e1190b7a9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to external websites, indicating a link farm or redirection attempt. One critical heuristic identified a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to game avatars and APK data, likely serving as a lure to encourage clicks on the malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=game+avatar+android+apk%252B+data In PDF document text
    • http://mideladab.todd-pettys.com/uploads/1/3/1/6/131607943/ganodisisu.pdfIn PDF document text
    • http://vudonisug.ycinvited.com/uploads/1/3/1/3/131379163/nibujezo.pdfIn PDF document text
    • http://files.apgarassociates.com/uploads/1/3/1/4/131454172/1b87ff2c6046d49.pdfIn PDF document text
    • http://zevur.jesipace-berkeley.com/uploads/1/3/0/8/130813694/8736569.pdfIn PDF document text
    • http://files.fishermanswharfcampbellriver.com/uploads/1/3/0/8/130814172/1802325.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2804/6233/files/muweriweli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1815/7221/files/os_capites_da_areia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3251/8554/files/38632190787.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8692/1376/files/94024376896.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1692/0996/files/lijugupixuridile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1799/3366/files/46941906140.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0766/2504/files/associao_de_resistores_em_serie_exercicios_resolvidos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0500/8293/files/74530032809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6209/1167/files/generate_checksum_paytm_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1460/9305/files/5865351544.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8631/5682/files/49113619456.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005bee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BEE 4836 bytes
SHA-256: 3b38aa0b0cd5ca7f5dfaf3ccdcb81ae3ca42e985723879713e75524eb0303c01
font_01_sfnt_off00006c4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C4B 11332 bytes
SHA-256: 1bfb7395d8631cfd7fb7d4a801093d0d69d65e272f220b2a561a6d96cba3732c
font_02_sfnt_off00009224.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9224 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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